A software house, that established in 2005 based in Indonesia, got 31 projects in 2019. By the end of year, Project Management Officer released documents to inform company’s project health. There are 14 projects confirmed late, 6 projects on time and 11 projects scheduled complete on the next year. That late projects cause serious problem like loses revenue and gets disrupted of company’s cash flow. Based on the root cause analysis, it found that no standardization of software development process in the company. Before designing the standardization to improve process, we need to analyze the obstacles that might be happened. Therefore, this study aims to identify the obstacles on software process improvement in software house. We performed a systematic literature review to determine the obstacles, then we do empirical research to 58 employees on company’s development department to sort the priority of obstacles in the company. From the systematic literature review, we found studies that relevant and there are 13 obstacles of software process improvement, then from the empirical research we got top three obstracles. We also proposed recommendations to solve that obstacles.